Trig Ratios
Learning and understanding Trigonometric angles
Objectives:
-Learn how Sin, Cos, and Tan are calculated
-Learn how to find missing sides given an angle and one of the sides.
#1
Move the slider to set the angle to 35 and check the boxes to calculate sin, cos, and tan. Then grab the white dot next to the right angle to change the size of the triangle. What do you notice about the 3 trigonometric ratios?
#2
Change the size of the triangle so the hypotenuse has a length of 1. How does the opposite side compare to the sin?
#3
How does the side adjacent to the angle compare to the cos when the hypotenuse is 1?
Use the activities above to see if you can calculate the missing sides of the triangle.
From above